I purchased one when it first came out but I sold it as soon as I opened it up to put on the layout. If you have Fastrack or tubular track it's easy to wire but if you have another brand of track it's a pain to wire as you need a relay and diode. I've come a long way since then with my wiring skills but it's still too much of a pain for what I get out of it.
Your mileage may vary.
-Greg
